CVE-2026-63649 Security feature bypass in OpenVPN
Local authenticated users can bypass trusted configuration directory constraints to load arbitrary configuration files in OpenVPN.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-63649?
CVE-2026-63649 is a medium-severity vulnerability in OpenVPN, published on 14 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The Windows interactive service in OpenVPN 2.4.0 through 2.6.21 and 2.7_alpha1 through 2.7.5 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary configuration files via crafted options that bypass whitelist checks
Weakness: CWE-183
Which versions are affected by CVE-2026-63649?
How do I fix CVE-2026-63649?
No fix has been published for CVE-2026-63649 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-63649 being exploited?
There is no known exploitation of CVE-2026-63649 in the wild and no public exploit code.
Sources
Also known as GHSA-p428-592p-6c59.